Library (Item Pool)

Item Pools
Normal / Hard	Treasure Room	Boss	Shop	Curse Room	Secret Room	Devil Room	Angel Room
	Library	Golden Chest	Red Chest	Beggar	Devil Beggar	Key Master	Bomb Bum
	Planetarium	Ultra Secret Room	Crane Game	Rotten Beggar	Battery Bum	Old Chest	Wooden Chest
	Baby Shop	Glass Chest	Dire Chest	Drug Dealer	Blacksmith	Zodiac	Robot Fortune Teller
Greed / Greedier	Treasure Room	Boss	Shop	Curse Room	Secret Room	Devil Room	Angel Room

Items in this pool can be found in the Library.

To see the Library pool of items in the original game, see its page on The Binding of Isaac: Rebirth wiki.

Name	Icon	Weight	Description
The Fiend Folio		1	Summons one of Fiend Folio's bosses or enemies to assist Isaac in the room.
Bedtime Story		1	Makes all enemies in the room drowsy. Drowsy enemies will slow down and eventually fall asleep. Damaging a sleeping enemy deals double damage, but wakes them up.
Empty Book		1	Customizable active item. Does a variety of effects depending on what the player chooses.
Hedonist's Cookbook		1	Causes all enemies with the lowest maximum HP in the room to explode in a shower of tears.